Primary infrapapillary carcinoma of the duodenum.
D000230:Adenocarcinoma / Q000175:diagnosis*; D000328:Adult; D000368:Aged; D002277:Carcinoma / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004379:Duodenal Neoplasms / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged